740 Hysteriacefe, Pliaeophragmise, Hysterium. 



rotundatis arcte conniventibus; sporidiis elongato-elavatis, v. sub- 

 ellipticis, ovoideisve, 1-3-septatis, primo hyalinis, dein dilute fuli- 

 gineis, 14-20-5. 



Ilab. in ramis quercinis decorticatis in America boreali. 

 9. Hysterium acuminatum Fr. Syst. Myc. II, pag. 582. — Subimmer- 564? 

 sura, atrum : peritheciis rectis discoque corneo lineari-lanceolatis 

 acuminatis, labiis tenuibus prominulis; ascis elongato-clavatis, 8- 

 sporis; sporidiis disticlns, oblongis, subcurvatis, 3-septatis, flavis. 



Hab. ad ligna vetusta Fagi in Suecia, Gallia et Germania. — 

 Pleruraque sparsum, iigno lsevigato (nec crustaceo-corroso) immer- 

 sum, tenue, '/,-1 lin. et uitra longura, opacum, labiis supra lignura 

 elevatis la;vibus subdistantibus, simile Pers. Myc. Eur. tab. I, fig- 

 3. 4. — Var. alpinum Rehm Ascom. n. 125: ascis subcylindricis, 

 ramuloso-paraphysatis, 90^10, octosporis; sporidiis monostichis, 

 subellipticis. inffiqualibus, 3-4-locularibus, 15-5, iuitio hyalinis. 

 dein rr-qualiter fuligineis. In truncis Pini Cembrae in Tyrolia. 



10. Hysterium eilipticum Fr. Obs. I, pag. 105, Syst. Myc. II, p. 583. 5fi43 



— Subinnatum, sparsum, rainimum, subellipticum, nigruin, labiis 

 distantibus, disco atro; ascis oblique distincte stipitatis, oblongis, 

 8-sporis, 104^20 (cum stipite); sporidiis subdistichis, oblongis, 

 triseptatis, ad septa constrictis, utrinque obtusis, quandoque cur- 

 vatis, loculis guttulatis, atro-fuscis, 24-26 s 8 (Fuck.) 



Hab. in cortice Saiicis in Suecia, Germania et Gallia, in 

 cortice CaryEe et Aceris in America boreali. — Nudo oculo 

 puncta nigra perexigua irregularia sistit; sub lente perithecia cor- 

 tici subimmersa, aperta, inter iabia tenuia distautia concava. Sec, 

 Minks Symb. II, 16, sporidia metiuntur tantum 14-16^5-5,5. 

 II. minutum DC. Fl. Fr. 6, pag. 168, minutie labiisque minus di- 

 stinctis tantillum recedit, secundum Fries. 



11. Hysterium Prostii Duby Hyst. pag. 26, Opegrapha Proslii Nyl. 5644 

 Prodr. 154, Angelina maura Ellis, sec Rehm. — Innatum demum 

 emergens sparsum aggregatumve lineari-ellipticum angustum mi- 

 nutum plus minus utrinque obtusum atrum opacum non striatum, 

 labiis tumidis acie obtusa tenui priinum laxe conniventibus demum 

 distantibus discum atrum primo rimaeforme demum lanceolatum 

 relinquentibus; ascis clavfeformibus, 70 ^ 12; sporidiis oblongis aut 

 fusiformi-ellipsoideis, rectis v. curvulis obtusissimis, distichis, tri- 

 septatis, 15-17-5, dilute fuscis: paraphysibus parcis, articulatis. 



— Spermogonia punctiformia, pertiisa, spermatiis linearibus sti- 

 pitellatis. 



